作者：郭克晴
1. Sometimes it's scary to talk about the future. 有时很害怕谈到将来。
句中的it是形式主语,真正的主语是动词不定式短语to talk about the future。如:
It's important for us to learn English well. 对我们来说,学好英语很重要。
2. I hope so. 我希望如此。
此句即I hope I will be a doctor. 在动词think, hope, believe, be afraid等词后可以用so来代替前句所说的内容。如:
-Do you think Mr. Li will come this afternoon? 你认为李先生下午会来吗?
-I think/ hope/ believe so. 我想/希望/相信他会来。
-Are we late? 我们来迟了吗?
-I'm afraid so. 恐怕是。
在否定句中think, believe可以有以下两种形式:①I don't think/ believe so. ②I think/ believe not.而hope和be afraid 只能采用第二种形式。如:
-Do you think the bus will arrive here on time? 你认为公共汽车会准时来吗?
-I don't think so. / I think not. 我想不会。
-Do you think we'll have bad weather? 你认为我们会碰上坏天气吗?
-I hope not. (不说I don't hope so.)希望不会。
-Are we on time? 我们会准时吗?
-I'm afraid not. (不说I'm not afraid so.)恐怕不能。